2023
Mapping Lesion-Related Epilepsy to a Human Brain Network
Schaper F, Nordberg J, Cohen A, Lin C, Hsu J, Horn A, Ferguson M, Siddiqi S, Drew W, Soussand L, Winkler A, Simó M, Bruna J, Rheims S, Guenot M, Bucci M, Nummenmaa L, Staals J, Colon A, Ackermans L, Bubrick E, Peters J, Wu O, Rost N, Grafman J, Blumenfeld H, Temel Y, Rouhl R, Joutsa J, Fox M. Mapping Lesion-Related Epilepsy to a Human Brain Network. JAMA Neurology 2023, 80: 891-902. PMID: 37399040, PMCID: PMC10318550, DOI: 10.1001/jamaneurol.2023.1988.Peer-Reviewed Original ResearchConceptsRisk of epilepsyLesion locationBrain regionsPoststroke epilepsyControl patientsSeizure controlBrain lesionsIndependent cohortBrain networksLesion typeBrain stimulation sitesLesion network mappingLesion-related epilepsyImproved seizure controlDrug-resistant epilepsyCase-control studyBrain stimulation therapyHuman brain networksSpecific brain regionsDifferent lesion typesSpecific brain networksBasal gangliaVascular territoriesStimulation therapyMAIN OUTCOME
2014
Physiological Basis of BOLD fMRI Decreases
Kim R, Hyder F, Blumenfeld H. Physiological Basis of BOLD fMRI Decreases. Neuromethods 2014, 88: 221-236. DOI: 10.1007/978-1-4939-0724-3_11.Peer-Reviewed Original ResearchCerebral blood flowCerebral blood volumeFMRI decreasesNeuronal activityLocal field potentialsNeuronal firingMagnetic resonance imaging (MRI) signal changesFunctional magnetic resonance imaging (fMRI) signal changesSpike-wave seizuresCortical slow oscillationsFMRI signal changesBOLD fMRI signalHippocampal seizuresSignal changesBasal gangliaDirect electrophysiological measurementsFMRI changesPhysiological basisSomatosensory stimulationBlood flowParadoxical decreaseAnimal modelsBlood volumeAnimal studiesCombined neuroimaging
2011
Where fMRI and Electrophysiology Agree to Disagree: Corticothalamic and Striatal Activity Patterns in the WAG/Rij Rat
Mishra AM, Ellens DJ, Schridde U, Motelow JE, Purcaro MJ, DeSalvo MN, Enev M, Sanganahalli BG, Hyder F, Blumenfeld H. Where fMRI and Electrophysiology Agree to Disagree: Corticothalamic and Striatal Activity Patterns in the WAG/Rij Rat. Journal Of Neuroscience 2011, 31: 15053-15064. PMID: 22016539, PMCID: PMC3432284, DOI: 10.1523/jneurosci.0101-11.2011.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainBrain MappingBrain WavesCerebral CortexCerebrovascular CirculationCorpus StriatumDisease Models, AnimalElectroencephalographyElectrophysiologyEpilepsyImage Processing, Computer-AssistedLaser-Doppler FlowmetryMagnetic Resonance ImagingNicotinic AntagonistsOxygenRatsRats, WistarThalamusTubocurarineVibrissaeConceptsCerebral blood flowCerebral blood volumeLocal field potentialsNeuronal activityLaser Doppler cerebral blood flowSubcortical structuresWAG/Rij ratsNeuronal activity decreasesHuman absence epilepsySpike-wave dischargesWAG/RijMultiunit activity recordingsFMRI signalsFunctional magnetic resonance imaging (fMRI) signalsMagnetic resonance imaging signalsFMRI decreasesCBF decreaseHemodynamic changesCerebral cortexBasal gangliaSomatosensory cortexAbsence epilepsyWhisker stimulationBlood flowAnimal models